Question

For each of the following questions make sure to include your hypotheses, test statistic, p-value or...

For each of the following questions make sure to include your hypotheses, test statistic, p-value or rejection region, and decision in sentence form.

2.ABC Personal Finance company markets it’s personal finance seminar to adults who are considered high-risk borrowers. The company claims their seminar helps adults increase their credit score. A random sample of adults who took the seminar was taken, and their credit scores before, and two years after the seminar were collected. Does this data show the company’s seminar helps adults increase their credit score? Test at the .01 level of significance. Assume credit scores are normally distributed.

Adult 1 2 3 4 5 6 7 8 9 10
Before 608 620 610 650 640 680 655 602 644 656
After 646 692 715 669 725 786 700 650 660 650

Homework Answers

Answer #1
Number Before After Difference ( di )
608 646 38 219.04
620 692 72 368.64
610 715 105 2724.84
650 669 19 1142.44
640 725 85 1036.84
680 786 106 2830.24
655 700 45 60.84
602 650 48 23.04
644 660 16 1354.24
656 650 -6 3457.44
Total 6365 6893 528 13217.6

To Test :-

H0 :-  

H1 :-  

Test Statistic :-

Test Criteria :-  

Reject null hypothesis if

Result :- Reject null hypothesis

Conclusion :- Accept Alternative Hypothesis

There is sufficient evidence to support the claim that the company’s seminar helps adults increase their credit score.

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